YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.78 | 54.50 | 40.18 | 28.76 | 45.31 | h | ||||
1989 | 31.24 | 35.91 | 45.94 | 53.67 | 59.34 | 65.85 | 67.31 | 64.40 | 61.47 | 49.81 | 41.25 | 33.58 | 50.81 | |||||||||||||
1990 | 31.24 | 31.34 | 39.16 | 47.59 | a | 54.03 | 70.68 | b | 64.60 | 62.65 | 60.00 | 51.65 | 39.02 | 30.62 | b | 48.55 | ||||||||||
1991 | 30.58 | 38.07 | a | 36.32 | 47.10 | 56.53 | 63.30 | 65.95 | a | 64.74 | 59.95 | 52.90 | 37.18 | 30.06 | 48.56 | |||||||||||
1992 | 26.23 | 33.55 | 39.89 | 51.80 | 53.76 | 63.30 | 65.82 | 64.56 | 61.65 | 52.61 | 30.67 | 28.88 | a | 47.73 | ||||||||||||
1993 | 32.28 | b | 32.83 | b | 40.97 | 47.78 | 55.87 | 65.07 | 68.74 | 63.50 | a | 59.60 | 48.43 | a | 36.78 | 31.63 | a | 48.62 | ||||||||
1994 | 33.47 | a | 32.50 | 41.34 | 47.18 | 55.29 | 69.45 | b | 68.31 | 66.82 | f | 59.85 | 46.85 | 34.88 | a | 32.22 | b | 47.39 | a | |||||||
1995 | 28.79 | c | 38.41 | 39.44 | 42.60 | 52.33 | b | 61.57 | 67.03 | 66.47 | a | 59.52 | a | 51.71 | 44.17 | a | 34.65 | a | 48.89 | |||||||
1996 | 33.98 | c | 38.87 | c | 40.40 | 49.07 | a | 62.77 | a | 68.02 | 69.60 | 66.19 | 56.76 | a | 49.47 | a | 39.60 | 32.67 | a | 50.62 | ||||||
1997 | 28.79 | b | 32.94 | a | 43.40 | 43.58 | 57.85 | 64.15 | 66.93 | a | 65.32 | 62.36 | a | ----- | z | 38.21 | a | 27.00 | a | 48.23 | a | |||||
1998 | 32.24 | 29.50 | 37.23 | 42.10 | 55.48 | ----- | z | 66.48 | b | 66.07 | a | 62.93 | 49.32 | 41.31 | a | ----- | z | 48.27 | b | |||||||
1999 | 35.11 | 37.72 | a | 42.15 | 43.92 | 54.50 | 62.95 | 64.80 | a | 63.58 | 59.13 | 53.15 | a | ----- | z | 28.92 | 49.63 | a | ||||||||
2000 | 35.59 | c | 39.22 | d | 39.82 | c | 49.75 | b | 60.82 | a | ----- | z | 69.39 | 67.32 | ----- | z | 47.76 | d | 31.43 | 34.22 | a | 47.53 | b | |||
2001 | 26.95 | a | 33.85 | a | 40.17 | b | 47.10 | ----- | z | 64.52 | 67.41 | c | 65.38 | a | 62.85 | 53.77 | 40.12 | a | 30.19 | b | 48.39 | a | ||||
2002 | 30.70 | k | 33.80 | a | 39.54 | c | 54.78 | 58.28 | a | 69.23 | b | 67.56 | 68.58 | a | 59.81 | f | ----- | z | 39.29 | a | 29.02 | c | 51.12 | c | ||
2003 | 37.19 | 33.43 | ----- | z | 47.17 | 57.95 | 65.95 | 73.31 | 67.06 | 61.98 | 55.05 | 40.17 | 33.40 | 52.06 | a | |||||||||||
2004 | ----- | z | 30.40 | 45.06 | 46.02 | 60.27 | 66.22 | 68.77 | 65.40 | 59.92 | 49.16 | 36.55 | 32.48 | 50.93 | a | |||||||||||
2005 | 35.53 | 33.86 | 37.94 | 47.98 | 58.87 | 65.22 | 71.50 | d | 64.53 | b | 61.73 | 49.45 | b | 42.03 | a | 34.81 | b | 50.29 | ||||||||
2006 | 33.25 | c | 38.04 | 36.50 | b | 49.26 | c | 60.53 | 66.82 | 67.11 | 61.09 | c | 54.10 | a | 46.69 | g | 39.53 | a | 26.78 | a | 48.46 | a | ||||
2007 | 23.42 | 32.02 | c | 46.71 | j | 49.26 | c | 56.08 | 67.95 | 69.48 | 68.98 | d | 62.25 | 52.08 | 44.92 | 29.32 | 50.52 | a | ||||||||
2008 | 26.77 | 34.28 | 40.85 | 47.47 | a | 54.84 | 67.48 | 66.71 | 66.03 | 59.43 | 51.07 | b | 40.32 | 32.29 | b | 48.96 | ||||||||||
2009 | 34.00 | 37.91 | a | 42.43 | a | ----- | z | 57.40 | 61.91 | c | 69.66 | 66.70 | a | 57.65 | 47.08 | ----- | z | 27.56 | 50.23 | b | ||||||
2010 | 29.55 | b | 28.65 | a | 37.12 | b | 46.57 | 53.52 | d | 66.71 | b | 67.97 | b | 64.18 | a | 63.66 | n | 51.33 | a | 35.98 | d | 36.82 | 47.13 | a | ||
2011 | 29.37 | a | 29.59 | ----- | z | 49.48 | b | 53.54 | c | 67.15 | 68.35 | a | 67.31 | r | 58.76 | a | 47.72 | b | 36.97 | 25.89 | 46.68 | b | ||||
2012 | 31.21 | e | 29.90 | n | 41.48 | j | 50.61 | b | 58.53 | a | 69.19 | d | 66.84 | b | 66.19 | b | 60.14 | i | 48.24 | j | ----- | z | ----- | z | 57.10 | f |
2013 | 25.11 | ----- | z | ----- | z | ----- | z | ----- | z | 68.98 | 65.16 | b | 64.02 | 58.13 | 47.02 | 34.72 | 23.18 | c | 48.29 | d | ||||||
2014 | 31.20 | p | 36.43 | a | 40.59 | i | 45.88 | ----- | z | 67.88 | 66.53 | b | ----- | z | ----- | z | 51.55 | 38.47 | k | 27.50 | p | 53.66 | g | |||
2015 | 30.31 | 36.71 | 40.88 | b | 45.82 | e | 50.52 | b | 65.57 | 63.98 | 65.18 | 61.00 | a | ----- | z | ----- | z | ----- | z | 51.11 | c | |||||
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.94 | u | 69.75 | y | 62.36 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.03 | b | 37.03 | k |
2018 | 36.29 | 37.38 | 42.10 | f | 52.14 | a | 61.05 | a | 70.38 | 69.67 | a | 67.65 | 63.02 | 48.05 | c | 36.52 | 31.48 | f | 54.21 | b | ||||||
2019 | 30.82 | a | 31.55 | 40.67 | a | 49.05 | a | 51.48 | 59.24 | a | 69.17 | a | 70.02 | 61.62 | 47.16 | 38.22 | e | 32.61 | 48.47 | |||||||
2020 | 31.85 | 34.11 | b | 43.31 | 50.17 | 61.42 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.17 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.15 | 34.39 | 40.46 | 48.03 | 56.77 | 66.10 | 67.73 | 65.61 | 60.14 | 50.35 | 38.40 | 30.95 | 49.15 | |||||||||||||
S.D. | 3.52 | 3.10 | 2.53 | 3.05 | 3.26 | 2.85 | 2.07 | 1.99 | 2.18 | 2.51 | 3.39 | 3.39 | 1.04 | |||||||||||||
SKEW | -0.31 | -0.08 | 0.29 | 0.12 | -0.03 | -0.44 | 0.49 | 0.11 | -0.80 | 0.20 | -0.37 | -0.20 | 0.56 | |||||||||||||
MAX | 37.19 | 39.22 | 45.94 | 54.78 | 62.77 | 70.68 | 73.31 | 70.02 | 63.02 | 55.05 | 44.92 | 37.03 | 50.81 | |||||||||||||
MIN | 23.42 | 28.65 | 36.32 | 42.10 | 50.52 | 59.24 | 63.98 | 61.09 | 54.10 | 46.85 | 30.67 | 23.18 | 47.73 | |||||||||||||
YRS | 27 | 28 | 23 | 28 | 27 | 27 | 29 | 26 | 25 | 25 | 25 | 26 | 10 |